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Smart all-time vision:The battery-free video communication for urban administration and law enforcement
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作者 Yajie He Chonghui Xiao +5 位作者 Shuai Wang Yun-Hao Liu Zhaoyuan Xu Haoquan Zhou Min Zhao Wei Gong 《Digital Communications and Networks》 SCIE CSCD 2023年第6期1411-1420,共10页
The Chinese government is dedicated to enhancing the level of informatization in administrative law enforcement to ensure fairness and increase credibility.Currently,law enforcement has exposed such problems as insuff... The Chinese government is dedicated to enhancing the level of informatization in administrative law enforcement to ensure fairness and increase credibility.Currently,law enforcement has exposed such problems as insufficient force,difficulties in collecting evidence,and low evidential power.These problems contradict the principles of rule of law and standardization.Many local governments have implemented advanced information technologies for urban administration and law enforcement,including big data,artificial intelligence,and IoT.Among these technologies,IoT is the core communication infrastructure for innovative law enforcement platforms.However,traditional video communications rely on batteries or dedicated power sources,leading to maintenance challenges and high power consumption.In this paper,we propose AT-Eye,a new video communication paradigm for all-time law enforcement video monitoring,which is battery-free and high-throughput.The key enabler of AT-Eye is ambient backscatter technology,which enables energy harvesting and video communication simultaneously.Unlike previous methods,our proposal introduces a novel CCK-based modulation for tag cameras and achieves 4-way concurrency.The modulation is simple because it uses phase difference and it is energyefficient because generating square waves is adequate.Moreover,to ensure full compatibility with COTS WiFi,we modulate the physical service data unit.Therefore,data recovery is possible using only commercial NICs.We conduct comprehensive experiments to examine our proposal and experiment results show that AT-Eye achieves a throughput of 10.8 Mbps with COTS radios.We also simulate a 16-way battery-free tag camera system,demonstrating AT-Eye’s feasibility of high-definition video communication. 展开更多
关键词 Video communication Backscatter communication Internet-of-Things Smart law enforcement
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Analysis of Economic Efficiency of Wildlife Law Enforcement in Serengeti Ecosystem Tanzania
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作者 Qambemeda M. Nyanghura Jumanne M. Abdallah 《Journal of Environmental Protection》 2023年第7期538-560,共23页
Law enforcement remains to be the main strategy used to combat poaching and account for high budget share in protected area management. Studies on efficiency of wildlife law enforcement in the protected areas are limi... Law enforcement remains to be the main strategy used to combat poaching and account for high budget share in protected area management. Studies on efficiency of wildlife law enforcement in the protected areas are limited. This study analyzed economic efficiency of wildlife law enforcement in terms of resource used and output generated using three different protected areas (PAs) of Serengeti ecosystem namely Serengeti National Park (SENAPA), Ikorongo/Grumeti Game Reserves (IGGR) and Ikona Wildlife Management Area (IWMA). Three years (2010-2012) monthly data on wildlife law enforcement inputs and outputs were collected from respective PAs authorities and supplemented with key informant interviews and secondary data. Questionnaire surveys were conducted to wildlife law enforcement staff. Shadow prices for non-marketed inputs were estimated, and market prices for marketed inputs. Data Envelopment Analysis (DEA) was used to estimate economic efficiency using Variable Return to Scale (VRS) and Constant Return to Scale (CCR) assumptions. Results revealed that wildlife law enforcement in all PAs was economically inefficient, with less inefficiency observed in IWMA. The less inefficiency in IWMA is likely attributed to existing sense of ownership and responsibility created through community-based conservation which resulted in to decrease in law enforcement costs. A slacks evaluation revealed a potential to reduce fuel consumption, number of patrol vehicles, ration and prosecution efforts at different magnitudes between studied protected areas. There is equal potential to recruit more rangers while maintaining the resting time. These finding forms the bases for monitoring and evaluation with respect to resource usage to enhance efficiency. It is further recommended to enhance community participation in conservation in SENAPA and IGGR to lower law enforcement costs. Collaboration between protected area, police and judiciary is fundamental to enhance enforcement efficiency. Despite old dataset, these findings are relevant since neither conservation policy nor institution framework has changed substantially in the last decade. 展开更多
关键词 Serengeti Ecosystem Wildlife law enforcement Data Envelopment Analysis
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Study on Game Theory of Social Law Enforcement
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作者 张国臣 黎志成 《Journal of Beijing Institute of Technology》 EI CAS 2003年第3期329-331,共3页
Based on the basis of the two stage dynamic game of complete information and purely tactful perfect equilibrium theory, the non cooperative gaming between the police department and the criminals is analyzed. Dyn... Based on the basis of the two stage dynamic game of complete information and purely tactful perfect equilibrium theory, the non cooperative gaming between the police department and the criminals is analyzed. Dynamic game can be proved to forecast and explain potential tactful choices of the police department and the criminals at various stages, so as to analyze the essence of the law enforcement by the theoretical models. 展开更多
关键词 law enforcement dynamic game Nash equilibrium Bayesian equilibrium
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Scalable and Accessible Crash Hot Spot Detection for Traffic Law Enforcement
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作者 Beau Burdett Ran Yi +2 位作者 Steven T. Parker Andrea Bill David A. Noyce 《Journal of Transportation Technologies》 2021年第2期265-283,共19页
Law enforcement agencies have begun utilizing traffic and crash data to improve traffic law enforcement delivery. However, many agencies often do not have the resources or expertise to harness fully the benefits this ... Law enforcement agencies have begun utilizing traffic and crash data to improve traffic law enforcement delivery. However, many agencies often do not have the resources or expertise to harness fully the benefits this data offers. A free to use, scalable traffic crash hot spot detection tool was developed to aid law enforcement agency decision makers, statewide to the local municipality level. The tool was developed to identify crash hot spots algorithmically with </span><span style="font-family:Verdana;">a range of customizable parameters based on location, date and time, and</span><span style="font-family:Verdana;"> crash factors, enabling quick, dynamic queries. These capabilities provide the ability for law enforcement agencies to conduct “what if” analyses and make data-driven allocation decisions, placing officer resources where they are most needed. The two-step algorithm first identifies potential hot spots based on </span><span style="font-family:Verdana;">crash density and then ranks each hot spot using a standardized z-score </span><span style="font-family:Verdana;">measure of relative significance. To test the viability of the tool, a pilot was conducted identifying 27 hot spots across Wisconsin where targeted enforcement was then deployed. Despite officer skepticism, results from the pilot found officers at sites targeted for speeding and seatbelt violations were nearly twice as likely to initiate traffic stops compared to non-targeted hot spots. Empirical Bayes before-and-after crash analyses found fatal and injury crashes reduced significantly by nearly 11% during the months with targeted enforcement, while property damage crashes and total crashes were unchanged. Overall, the results show the algorithm can identify hotspots where, coupled with targeted enforcement, traffic safety improvements can be made. 展开更多
关键词 Hot Spots law enforcement Traffic Data Crash Data
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On the Current Situation of Basic - level Administrative Law Enforcement in China
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作者 Xiaoxing Xie 《International Journal of Technology Management》 2016年第11期36-37,共2页
With the development of economy and society, our country is on the road of rule by law, the legal system is progressing constantly. At the same time, we should also see that the administration according to law is not ... With the development of economy and society, our country is on the road of rule by law, the legal system is progressing constantly. At the same time, we should also see that the administration according to law is not perfect, and its shortcomings exist in different degree and need to be further improved. Based on the analysis of the status quo of grass-roots administrative law enforcement in China, this paper tries to put forward corresponding countermeasures, so as to promote the work of law-based administration for the corresponding study. 展开更多
关键词 grass - roots level administrative law enforcement present situation
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Improving effectiveness of protection efforts in tiger source sites:Developing a framework for law enforcement monitoring using MIST
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作者 Emma J.STOKES 《Integrative Zoology》 SCIE CSCD 2010年第4期363-377,共15页
Wild tigers are in a critical state with an estimated population decline of more than 95%over the past century.Improving the capacity and effectiveness of law enforcement in reducing poaching of tigers is an immediate... Wild tigers are in a critical state with an estimated population decline of more than 95%over the past century.Improving the capacity and effectiveness of law enforcement in reducing poaching of tigers is an immediate priority to secure remaining wild populations in source sites.From 2008-2010,standardized patrol-based law enforcement monitoring(LEM)was established under the Tigers Forever Program across 8 key tiger sites in order to improve and evaluate law enforcement interventions.Patrol-based monitoring has the distinct advantage of providing regular and rapid information on illegal activities and ranger performance,although,until recently,it has received relatively little scrutiny from the conservation community.The present paper outlines a framework for implementation of LEM in tiger source sites using MIST,a computerized management information system for ranger-based data collection.The framework addresses many of the technical,practical and institutional challenges involved in the design,implementation,sustainability and evaluation of LEM.Adoption of such a framework for LEM is a cost-effective strategy to improve the efficiency of law enforcement efforts,to increase the motivation of enforcement staff and to promote the accountability of law enforcement agencies in addressing threats to tigers.When combined with independent,systematic and science-based monitoring of tigers and their prey,LEM has great potential for evaluating the effectiveness of protection-based conservation investments. 展开更多
关键词 law enforcement monitoring MIST protected areas PROTECTION TIGERS
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Indicators of success for smart law enforcement in protected areas:A case study for Russian Amur tiger(Panthera tigris altaica)reserves
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作者 Michiel H.H.HÖTTE Igor A.KOLODIN +7 位作者 Sergei L.BEREZNUK Jonathan C.SLAGHT Linda L.KERLEY Svetlana V.SOUTYRINA Galina P.SALKINA Olga Y.ZAUMYSLOVA Emma J.STOKES Dale G.MIQUELLE 《Integrative Zoology》 SCIE CSCD 2016年第1期2-15,共14页
Although considerable conservation resources have been committed to develop and use law enforcement monitoring and management tools such as SMART,measures of success are ill-defined and,to date,few reports detail resu... Although considerable conservation resources have been committed to develop and use law enforcement monitoring and management tools such as SMART,measures of success are ill-defined and,to date,few reports detail results post-implementation.Here,we present 4 case studies from protected areas with Amur tigers(Panthera tigris altaica)in Russia,in which indicators of success were defined and evaluated at each.The ultimate goal was an increase in tiger numbers to 1 individual/100 km^(2)at each site.We predicted that improvements in law enforcement effectiveness would be followed by increases in prey numbers and,subsequently,tiger numbers.We used short-term and long-term indicators of success,including:(i)patrol team effort and effectiveness;(ii)catch per unit effort indicators(to measure reductions in threats);and(iii)changes in target species numbers.In addition to implementing a monitoring system,we focused on improving law enforcement management using an adaptive management process.Over 4 years,we noted clear increases in patrol effort and a partial reduction in threats.Although we did not detect clear trends in ungulate numbers,tiger populations remained stable or increased,suggesting that poaching of tigers may be more limiting than prey depletion.Increased effectiveness is needed before a clear reduction in threats can be noted,and more time is needed before detecting responses in target populations.Nonetheless,delineation of concrete goals and indicators of success provide a means of evaluating progress and weaknesses.Such monitoring should be a central component of law enforcement strategies for protected areas. 展开更多
关键词 adaptive patrol management Amur tiger anti-poaching law enforcement monitoring SMART
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On the Eve of the Enforcement of the Arbitration Law——An interview with Xu Dayou, vice-chairman of China Council for the Promotion of International Trade and of the China International Economic and Trade Arbitration Commission 被引量:1
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作者 Min Zi 《China's Foreign Trade》 1995年第6期6-7,共2页
The Arbitration Law of the People’s Republic of China will go into effect on September 1, 1995, which has become the focus of world attention. This is an important law promulgated by China for handling economic dispu... The Arbitration Law of the People’s Republic of China will go into effect on September 1, 1995, which has become the focus of world attention. This is an important law promulgated by China for handling economic disputes. All the parties concerned are making intense preparations for the successful enforcement of the Law. As the first nongovernmental organisation engaged in arbitration affairs, the China Council 展开更多
关键词 On the Eve of the enforcement of the Arbitration law vice-chairman of China Council for the Promotion of International Trade and of the China International Economic and Trade Arbitration Commission An interview with Xu Dayou
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Achievements Outstanding In Protecting Minors——Report on enforcement of Law on the Protection of Minors (excerpts)
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作者 GU XIULIAN Vice-Chairperson of the NPC Standing Committee, China. 《The Journal of Human Rights》 2003年第6期6-9,共4页
The Law of the People's Republic of China on the Protection of Minors and the Law ofthe People's Republic of China on the Prevention of Juvenile Crimes were passed on September 4, 1991 and June 28,1999 and cam... The Law of the People's Republic of China on the Protection of Minors and the Law ofthe People's Republic of China on the Prevention of Juvenile Crimes were passed on September 4, 1991 and June 28,1999 and came into force on January 1, 1992 and November 1, 1999. Over the past decades, China has scoredoutstanding achievements in implementing the two laws. In order to strengthen supervision of the implementationof the two laws and better protect the lawful rights and interests of the under-aged, the National People's CongressStanding Committee set up a Law Enforcement Check Group in July 2003, which carried out a nationwidecheck of the implementation of the two laws. On August 25, NPC Vice-Chairperson Gu Xiulian reported on theresult of the check to the fourth meeting of the Tenth NPC standing committee. She described the generalsituation in the implementation of the two laws as 'good' and also identified some problems and put forwardsome recommendations with regard to the enforcement and implementation of the two laws.The following are the excerpts of the report: 展开更多
关键词 of for Pr on excerpts Achievements Outstanding In Protecting Minors Report on enforcement of law on the Protection of Minors
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Guideline for Making,Enforcement of Laws
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作者 WANG SHIHU 《The Journal of Human Rights》 2008年第1期31-32,共2页
Respect for and protection of human rights is a constitutional principle for China. China's Constitution states: "The ,State shall respect and protect human rights" In practice, this constitutional principle serve... Respect for and protection of human rights is a constitutional principle for China. China's Constitution states: "The ,State shall respect and protect human rights" In practice, this constitutional principle serves as an important guideline for the making and enforcement of laws. 展开更多
关键词 Guideline for Making enforcement of laws
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Does Environmental Laws and Policies Work?A Review Of Ghana’s Case
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作者 Aboagye Emmanuel Mensah Attobrah Justice +1 位作者 Owusu Nana Osei Fletcher Henrietta 《Research in Ecology》 2020年第3期32-41,共10页
Enforcing environmental laws and policies has been one of the pressing agenda globally.Despite the mandate given to the Environmental Protection Agency(EPA)by the Act 490,there are still numerous environmental issues ... Enforcing environmental laws and policies has been one of the pressing agenda globally.Despite the mandate given to the Environmental Protection Agency(EPA)by the Act 490,there are still numerous environmental issues unaddressed in Ghana.This paper is geared towards unravelling and identifying the current additions that have been made to existing literature on environmental laws and policies in Ghana.This paper made a wide-ranging general literature review to outline significant contributions concerning environmental laws and policies.Numerous environmental laws and policies were identified but have been fragmented and are not codified in a particular document.It is evident from the review of literature existing that there are still areas for advanced research on the topic of environmental laws and policies placing more emphasis on institution concerned with environmental issues at global level.The study recommended the need for capacity building for environmental personnel and data due to the numerous technological advancement to better assist the implementation and enforcement of environmental laws in Ghana. 展开更多
关键词 Environmental laws Environmental policies Environmental Protection Agency law enforcement Act 490 Ghana
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Tian Qiyu: Enforce Law for People and Human Rights
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作者 OUR STAFF REPORTER 《The Journal of Human Rights》 2005年第3期2-6,共5页
Editor's Note: In recent years, China's public security organs have firmly implanted the idea of enforcing the law in the interests of the people and adhered to the principle of enforcing the law strictly, imp... Editor's Note: In recent years, China's public security organs have firmly implanted the idea of enforcing the law in the interests of the people and adhered to the principle of enforcing the law strictly, impartially and in a civilized manner and dealing flows at all kinds of criminal activities. They have achieved fruitful results in protecting the lawful rights and interests of the people and in safeguarding and protecting human rights. To know such achievements, our staff reporter interviewed Tian Qiyu, executive vice-minister of public security. 展开更多
关键词 Enforce law for People and Human Rights Tian Qiyu
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当前环境执法中存在的问题及对策研究 被引量:17
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作者 赵丽君 程仑 《环境科学与管理》 CAS 2005年第3期9-10,47,共3页
环境执法不力是环境保护的薄弱环节,文章分析了当前环境执法中存在的问题及原因,并针对性地提出了加强环境执法的对策,实施这些对策对推动环境保护走上依法管理的轨道具有重要意义。
关键词 环境执法 对策研究 环境保护 薄弱环节 依法管理
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Design of an Index System for Deep Groundwater Management Efficiency Evaluation: A Case Study in Tianjin City, China 被引量:1
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作者 NAN Tian SHAO Jingli +2 位作者 CAO Xiaoyuan ZHANG Qiulan CUI Yali 《Chinese Geographical Science》 SCIE CSCD 2016年第3期325-338,共14页
An effective evaluation system can provide specific and practical suggestions to the deep groundwater management. But such kind of evaluation system has not been proposed in China. In this study, an evaluation index s... An effective evaluation system can provide specific and practical suggestions to the deep groundwater management. But such kind of evaluation system has not been proposed in China. In this study, an evaluation index system is specifically developed to evaluate deep groundwater management efficiency. It is composed of three first-level indicators(law enforcement capability, management ability, and management effectiveness) and eleven second-level indicators. The second-level indicators include seven mandatory indicators and four optional indicators. Piecewise linear function is used to normalize the quantitative indicators, and expert scoring method and questionnaire survey method are used to normalize the qualitative indicators. Then a comprehensive indicator weighting evaluation method is used to evaluate the first-level indicators and the target topic. A case study is carried out to evaluate deep groundwater management efficiency in Tianjin City. According to the evaluation score in each period, the management efficiency of every district in Tianjin City gradually improved. The overall evaluation score in the early deep groundwater extraction period is 0.12. After a series of deep groundwater protection efforts, this score reached to 0.61 in 2007, and met the regulation criteria. The evaluation results also showed that the further groundwater management efforts in Tianjin City should be focused on building a dynamic database to collect comprehensive deep well-log data; and on a reasonable design and distribution of the groundwater monitoring network. It demonstrated that the index system is suitable to locate the deficiencies of current groundwater management systems and to guide further improvements. It can then be used to protect deep groundwater. 展开更多
关键词 deep groundwater management evaluation index system law enforcement capability management ability management effectiveness
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Impolite Pedestrian Detection by Using Enhanced YOLOv3-Tiny 被引量:2
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作者 Yanming Wang Kebin Jia Pengyu Liu 《Journal on Artificial Intelligence》 2020年第3期113-124,共12页
In recent years,the problem of“Impolite Pedestrian”in front of the zebra crossing has aroused widespread concern from all walks of life.The traffic sector’s governance measures have become more serious.The traditio... In recent years,the problem of“Impolite Pedestrian”in front of the zebra crossing has aroused widespread concern from all walks of life.The traffic sector’s governance measures have become more serious.The traditional way of governance is on-site law enforcement,which requires a lot of manpower and material resources and is low efficiency.An enhanced YOLOv3-tiny model is proposed for pedestrians and vehicle detection in traffic monitoring.By modifying the backbone network structure of YOLOv3-tiny model,introducing deep detachable convolution operation,and designing the basic residual block unit of the network,the feature extraction ability of the backbone network is enhanced.The improved model is trained on the VOC2007+VOC2012 training set,and the trained model is tested for performance on the test data set.The experimental results show that:the mean Average Precision(mAP)increased from 0.672 to 0.732,increasing the measurement accuracy by 9%.The Intersection over Union(IoU)increased from 0.783 to 0.855,increasing the coverage accuracy by 7.2%.The enhanced YOLOv3-tiny model has higher measurement accuracy than the original model.Applying this model to the 1080P traffic video on the NVIDIA RTX 2080,the detection speed is 150 FPS,which can fully achieve real-time detection.Through the analysis of pedestrians and vehicle coordinates,it is judged whether or not illegal acts occur.For illegal vehicles,save three pictures as the basis for law enforcement,which forms an important supplement to off-site law enforcement. 展开更多
关键词 Impolite pedestrian YOLOv3-tiny deep detachable convolution residual block off-site law enforcement
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On Some Legal Problems in Postal Administration
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作者 Peng Liu 《Journal of Finance Research》 2020年第1期118-129,共12页
With the development of e-commerce,the express delivery industry in China has developed rapidly.In the past,the express logistics service with postal service as the core has gradually developed into a competitive situ... With the development of e-commerce,the express delivery industry in China has developed rapidly.In the past,the express logistics service with postal service as the core has gradually developed into a competitive situation among many logistics companies,such as EMS,Shunfeng,and“Four Tong&One Da”(Shentong Express,Yuantong Express,Zhongtong Express,Best Express,Yunda Express).With the rapid development of China’s express industry,and the development of e-commerce,the number of online shopping has increased,express has become an important choice for small goods exchanges.As a new industry in China,express service industry greatly promotes the development of social economy.With the rapid development of express industry,China has surpassed the United States and become the largest express country in the world.The proportion of express industry in GDP has exceeded 1%,which is becoming one of the pillar industries in China.At the same time,the development of the industry is not standardized.Due to the difference of service standards and the lack of service quality,the number of consumer complaints is increasing. 展开更多
关键词 EXPRESS law enforcement COMPENSATION Postal administration
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